1. | Sterols | 2. | Catecholamines |
3. | Hopanoids | 4. | Terpenes |
Assertion(A): | Adrenaline and noradrenaline are called emergency hormones or hormones of Fight or Flight. |
Reason(R): | Adrenaline and noradrenaline are monoamine neurotransmitters. |
1. | (A) is True; (R) is False |
2. | Both (A) and (R) are True but (R) does not correctly explain (A) |
3. | Both (A) and (R) are True and (R) correctly explains (A) |
4. | (A) is False; (R) is True |
I: | increase in heart rate |
II: | decrease in the strength of heart contraction |
III: | increase in the rate of respiration |
IV: | glycogenolysis |
V: | breakdown of lipids and proteins |
1. | 2 | 2. | 3 |
3. | 4 | 4. | 5 |
1. | Thyroxine | 2. | Thymosin |
3. | Cortisol | 4. | Aldosterone |
1. | acts mainly at the renal tubules and stimulates the excretion of Na+ and water and reabsorption of K+ and phosphate ions. |
2. | acts mainly at the renal tubules and stimulates the reabsorption of Na+ and water and excretion of K+ and phosphate ions. |
3. | acts mainly at the collecting duct and stimulates the excretion of Na+ and water and reabsorption of K+ and phosphate ions. |
4. | acts mainly at the collecting duct and stimulates the reabsorption of Na+ and water and excretion of K+ and phosphate ions. |
1. | It is a composite gland which acts as both exocrine and endocrine gland. |
2. | The endocrine pancreas consists of ‘Islets of Langerhans’. |
3. | There are about 1 to 2 million Islets of Langerhans in a normal human pancreas representing 90 percent of the pancreatic tissue. |
4. | It is an organ of the digestive system and endocrine system of vertebrates. |
A: | The α-cells secrete a hypoglycaemic hormone called glucagon. |
B: | The β-cells secrete a hyperglycaemic hormone called insulin. |
Assertion (A): | Diabetes mellitus is associated with loss of glucose through urine and formation of harmful compounds known as ketone bodies. |
Reason (R): | Insulin stimulates conversion of glucose to glycogen (glycogenesis) in the target cells. |
1. | (A) is True but (R) is False. |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
4. | (A) is False but (R) is True. |
I: | regulate the development, maturation and functions of the male accessory sex organs. |
II: | stimulate muscular growth, growth of facial and axillary hair, aggressiveness, low pitch of voice etc. |
III: | play a major stimulatory role in the process of spermatogenesis (formation of spermatozoa). |
IV: | act on the central neural system and influence the male sexual behaviour (libido). |
V: | produce anabolic (synthetic) effects on protein and carbohydrate metabolism. |